Current Affairs

Fukushima reactor number one in “total meltdown” develops leak and might need to be encased in concrete sarcophagus

May 12, 2011 Sorin Adam Matei

Japanese Electric power company officials confirm worst case scenario at Fukushima powerplant

Workers at the Fukushima Daiichi nuclear plant have been pumping water into at least three of the six reactors on the site to bring their nuclear fuel rods to a “cold shutdown” state by January.

But after repairing a gauge in the No. 1 reactor earlier this week, TEPCO discovered that the water level in the pressure vessel that contains its uranium fuel rods had dropped about 5 meters (16 ft) below the targeted level to cover the fuel under normal operating conditions.

“There must be a large leak,” Junichi Matsumoto, a general manager at the utility told a news conference.

“The fuel pellets likely melted and fell, and in the process may have damaged…the pressure vessel itself and created a hole,” he added.

Since the surface temperature of the pressure vessel has been holding steady between 100 and 120 degrees Celsius, Matsumoto said the effort to cool the melted uranium fuel by pumping in water was working and would continue.

Fukushima reactor has a hole, leading to leakage (scientificamerican.com)
It’s Official: Fukushima Was Hit With a Nuclear Meltdown [Japan] (gizmodo.com)
Meltdown (delong.typepad.com)

Sorin Adam Matei

Assistant Vice President for Partnerships in Strategic Defense Innnovation and Professor of Communication at Purdue University, Director of the FORCES initiative leads research teams that study the relationship between technological and social systems using big data, simulation, and mapping approaches. He published papers and articles in Journal of Communication, Communication Research, Information Society, National Interest, and Foreign Policy. He is the author or co-editor of several books. The most recent is Structural differentation in social media. He also co-edited Ethical Reasoning in Big Data,Transparency in social media and Roles, Trust, and Reputation in Social Media Knowledge Markets: Theory and Methods (Computational Social Sciences) , all three the product of the NSF funded KredibleNet project. Dr. Matei's teaching portfolio includes technology and strategy, online interaction, and digital media analytics classes. A former BBC World Service journalist, his contributions have been published in Esquire and several leading Romanian newspapers. In Romania, he is known for his books Boierii Mintii (The Mind Boyars), Idolii forului (Idols of the forum), and Idei de schimb (Spare ideas).

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